[INFO] cloning repository https://github.com/CollinValley/rust_practice [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CollinValley/rust_practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCollinValley%2Frust_practice", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCollinValley%2Frust_practice'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f43ee9bf1397a7e46b78a5a03bc6811988dfc58f [INFO] checking CollinValley/rust_practice/f43ee9bf1397a7e46b78a5a03bc6811988dfc58f against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCollinValley%2Frust_practice" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/CollinValley/rust_practice on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/CollinValley/rust_practice [INFO] finished tweaking git repo https://github.com/CollinValley/rust_practice [INFO] tweaked toml for git repo https://github.com/CollinValley/rust_practice written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/CollinValley/rust_practice already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded num-bigint v0.2.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9455cc3dfa288584a8759ba28247a8405a01952b5e6902e5216beffd67bbaf40 [INFO] running `Command { std: "docker" "start" "-a" "9455cc3dfa288584a8759ba28247a8405a01952b5e6902e5216beffd67bbaf40", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9455cc3dfa288584a8759ba28247a8405a01952b5e6902e5216beffd67bbaf40", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9455cc3dfa288584a8759ba28247a8405a01952b5e6902e5216beffd67bbaf40", kill_on_drop: false }` [INFO] [stdout] 9455cc3dfa288584a8759ba28247a8405a01952b5e6902e5216beffd67bbaf40 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b3a618094e7161ad8741a9de9d988e34229bd15579526b262340a31eecc50b60 [INFO] running `Command { std: "docker" "start" "-a" "b3a618094e7161ad8741a9de9d988e34229bd15579526b262340a31eecc50b60", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.2.6 [INFO] [stderr] Compiling num-integer v0.1.39 [INFO] [stderr] Compiling num-bigint v0.2.1 [INFO] [stderr] Compiling num-rational v0.2.1 [INFO] [stderr] Compiling num-iter v0.1.37 [INFO] [stderr] Compiling num-complex v0.2.1 [INFO] [stderr] Checking num v0.2.0 [INFO] [stderr] Checking rust_practice v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/chapter_11.rs:6:24 [INFO] [stdout] | [INFO] [stdout] 6 | fn say_hello(out: &mut Write) -> std::io::Result<()> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 6 | fn say_hello(out: &mut dyn Write) -> std::io::Result<()> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/chapter_11.rs:6:24 [INFO] [stdout] | [INFO] [stdout] 6 | fn say_hello(out: &mut Write) -> std::io::Result<()> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 6 | fn say_hello(out: &mut dyn Write) -> std::io::Result<()> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `core::str::::trim_right_matches`: superseded by `trim_end_matches` [INFO] [stdout] --> src/chapter_10.rs:84:23 [INFO] [stdout] | [INFO] [stdout] 84 | self.plural().trim_right_matches('s') [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] help: replace the use of the deprecated method [INFO] [stdout] | [INFO] [stdout] 84 | self.plural().trim_end_matches('s') [INFO] [stdout] | ~~~~~~~~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `core::str::::trim_right_matches`: superseded by `trim_end_matches` [INFO] [stdout] --> src/chapter_10.rs:84:23 [INFO] [stdout] | [INFO] [stdout] 84 | self.plural().trim_right_matches('s') [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] help: replace the use of the deprecated method [INFO] [stdout] | [INFO] [stdout] 84 | self.plural().trim_end_matches('s') [INFO] [stdout] | ~~~~~~~~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Extrema` is never constructed [INFO] [stdout] --> src/chapter_9.rs:157:8 [INFO] [stdout] | [INFO] [stdout] 157 | struct Extrema<'elt> { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `find_extrema` is never used [INFO] [stdout] --> src/chapter_9.rs:162:4 [INFO] [stdout] | [INFO] [stdout] 162 | fn find_extrema<'s>(slice: &'s [i32]) -> Extrema<'s> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Point` is never constructed [INFO] [stdout] --> src/chapter_9.rs:189:8 [INFO] [stdout] | [INFO] [stdout] 189 | struct Point { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `say_hello` is never used [INFO] [stdout] --> src/chapter_11.rs:6:4 [INFO] [stdout] | [INFO] [stdout] 6 | fn say_hello(out: &mut Write) -> std::io::Result<()> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `min` is never used [INFO] [stdout] --> src/chapter_11.rs:32:4 [INFO] [stdout] | [INFO] [stdout] 32 | fn min(value1: T, value2: T) -> T { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `dot` is never used [INFO] [stdout] --> src/chapter_11.rs:199:4 [INFO] [stdout] | [INFO] [stdout] 199 | fn dot(v1: &[N], v2: &[N]) -> N [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Point` is never constructed [INFO] [stdout] --> src/chapter_9.rs:189:8 [INFO] [stdout] | [INFO] [stdout] 189 | struct Point { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.41s [INFO] running `Command { std: "docker" "inspect" "b3a618094e7161ad8741a9de9d988e34229bd15579526b262340a31eecc50b60", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b3a618094e7161ad8741a9de9d988e34229bd15579526b262340a31eecc50b60", kill_on_drop: false }` [INFO] [stdout] b3a618094e7161ad8741a9de9d988e34229bd15579526b262340a31eecc50b60